Press.



J. V. WORTHINGTON.

PRESS;

APPLIUATION r1LBD'ooT-1', 1912.

L 19,56. Patented-Dec. 1,1914,

*fr en il onirica.

JOHN VIGEIB/S lVURT-IINGi'lp-N; ,JBIRMINGHM, ENGLAND, AIGNOR TG TEE DUNLOP RUBBER COMLANYHLIYITED, 0F BIRMINGHJLCENGLAND.

PRESS.

application led etober 1912.

To all '1c/011i it may concern Be it known that l, JOHN Violins Nourriixcrox, a subject of the King or' Great Britain, residing at Manor lyilills, Salford street, Aston, Birmingham, in the county oi Warwick, England, have invented a certain new and usel'ul lPress, of which the following is a'speciication.

rlhis invention relates to the manufacture oi golf balls and similar molded articles and hasl particular reference to the application oi' heat and pressure to such articles when in their molds, the chief object being to eliminate as as possible surface defects on the finished articles, and in some cases to enable this treatment to be performed more rapidly 'than hitherto.

According to the present invention the molds containing the balls or other articles are subjected to heat and pressure in a frame or chamber from vwhich the air is exhausted before the heat and pressure are applied. The removal of the air from the chamber and hence 'from the molds alsof-the sections of which are only loosely fitted together, not being' yet subj-cted to pressureminimizes or eliminates the tendency for air bubbles to remain occluded in recesses or irregularities in the molds; such occluded bubbles have hitherto been the chierC source of defects in the surface of the finished articles. The trame or chamber in 'which the articles are subjected to pressure comprises a ring having compressible packing on its edges. The press members. which are in the form of hollow plates, are adapted to clasp the aforesaid ring between them and the compressiblc packing permits of air tight joints being formed so that the space inclosed b v the ring and plates can be hausted before the pressure is actually applied to the molds by the further approach ot the plates toward one another. The approach of the plates is of course limited by the intervening` ring, the depth ot which is suited tothe depth of the molds. The heat is applied to the molds by circulating steam or other appropriate gases within the press members. The chamber can finally be cooled rapidly by circulating cold water or other fluid within it and within the said press members.

Il-he plates may ce arranged vertically above one another and the lower plate may be carried by a vertically movable hydrau- Specification of Letters Patent.

llatented Dee. i, i914.

serial no. 724,433.

lic ram; means may also be provided for rlhe faces of the plates A and B are slightly grooved or recessed, as shown, to permit of the projecting rubber rings D, D1, becoming well bedded against their surface and to provide space in which the said rings can become compressed without, however, becoming unduly crushed when the final pressure is exerted between the plates. The lower plate B is mounted upon a vertically movable hydraulic ram B1.

E is -a water supply pipe and El E2 E3 are valves for controlling the supply of water to the interior of the plates A and B and the ring C respectively.

F is a steam supply pipe and F1 F2 are valves for controlling the supply of steam 'to the interior of the plates A and B. A

portion B of the piping to the lower plate B is iiefrible to permit of the vertical movement ci" the plate B. l

G is a pipe `leading to an exhaust pump.

J is e steam or water exhaust pipe leading from the plate A, and A0 a valve in said pipe; similarly Bx is a pipe leading from a -lox on the plate B, and BO a valve in said pipe.

B3 is a leXible portion of exhaust piping to permit of the vertical movements of the plate B.

C is a water exhaust pipe leading from the ring C, and CO a valve in said pipe.

ln using the apparatus for the manufac-` ture of golf balls. any desired number of molds containing the assembled portions of the balls are placed upon the lower platoB when in its lowered position; and the ram B* is then' caused to raise this plate sullcien'tly to bring its grove or recess into con- CIK Cil

.inside the melde have beenl ma y met with tbe ewei :gabber peeiiii i oit the suspended m Ting f" d uppei ubbee peeking eine; the gleove er on tbe undef-sue ieee of theiipper pete AA. ft. ebembel thus formed, with the molds Within. it, but the plates A en@ B ei'e met et this lmmgbt eueieltly neer one another to cause pressure to be exerted upon the diiieient sections of the molds, m: even @110W molds te touch tbe fece of 'tbe' upper piatte. The vacuum pump is eben set .in epeietion te exhaust this ehumbe by the extiectiom ett the inelesed eil' thi'eugb tbe exhaust pipe Steam is then admitted to 'the inteiiei' o?? tbe hollow pistes by opening the Veit/es i? F2, and, the ifuii j uieesuie exerted upon the molde by further eieiiig the lower plete E? tb rebbe? pecking finge becoming; compresse to peimt of tlii movement',-

bele baite 'iieetei suiiieieeti e the euppiy e@ by eine ing the wives and. i3?, wat eeifi wete? is v freeiy eieuieted in tbe bellow {nietes} emi also in the chamber, 'by @peeing tbe "velvet El, En? E3, and A95 E, GO, .tbeieby rapidly cooling the petes'eii the moitie The het iow pietes een then be seperated end the balls removed from tbeiiiiieiie Although the ire/eiitieii is jeertieuieriy ap pleabie te geit baile, since e ierge Immbei' et balie een' be deelt with in e eompeietiveiy short period of time;` it may aise be eiiepteci. in the ,manufacture of molded e'tieiee fi emily Where beet end p11-essere 'tieetment is iequefz. and espeeiaiiy in the manufacture of rubbei and ebenite aixtielee requiring com plieeted moldsQ i What i claim and desire to secuife "by ters Patent et tbeUnited is:-

l. Apparatus for use in the manufacture of geit' buiis er similar moified eteies by tbe appiicatiom oi heat emi pressure. to when 'they mie in their moitie, eompisiiig e'yiindreei ring, the depth oi' 'which is suited te that oi' the moitie, eompressible peeking en the Het edges tiieieot, pilates adapted te be 'pressed against tbe iat edges ef :seidv 'fing thus forming; a meld chamber and also ep piying pessee te the articles in tbe meid@5 means for exhausting tile ebembefj means toi' eontreiiing the tempe'atm'e withim mici eimmbei?.

Apparatus im: *use in the manufacture ef golf bells or simiie meiefi ai? the application of beet mit presente te them when they' ere inftbeir moitie, eempsfe 'e3/ii fiiieei. 'tbe dept@ J1-'bieb is Suited 'te that of tbe moile, eompieeeibie peeieiieg ou the fiat edges tiieieet beiiew petes adapted te be please@ egainet Het edges of Sei ring thus forming; e meld. eheiibel', and aise applying' presume 'te the articles in the melde, ineens for eihmistine the eiiambei means for circulating-,f e Hui." beating meeium within 'the beiow platee? und meanefm eireuetingg e meting medium 'within tbe Seit?, platee.

3. fippemtus foi" use in 'tbe et geit betie of eimim moi" the eppiimtieii ott beet an@ when they in tiieii' meifie, comprising e 'tontaiijf .f5` ed ejwiimiieei ring" with cui weis be depth ei?, which ie suited te that of the moifis, comjpessibie peeking carried. by' anni pojeetieg iiem .its lippe? lower edges, upper and 'tower iioiiew pietee for @leeg/ine" yimg between them.

UN lying 'iieseuie te the m'tieee in the moitie? nee-ine 15501" eximusting the, ebembei, ,means el moving; the pimes tee/'arti emieway eem @ecb other, means for cieuietiug a [inici heating mefiium within the pistes, end ineens for eieuiating e coeing medium. within the platee and Within the chamber.

e Apparatus for @se in the manufacture of geit mls ei' similar molded articles by tbe application ef 'beet and pressure to them when they are 'in their melde, eompiising e, bei'izonteily situated cylindrical fing; beviig Vertical 1i/MS, the cieth et which is suited to that et" the melde, cempreesibe peeking carried. and projecting' from its upper end lower edges, upper emi iowe` blob low platee recessed on their opposing feces te partially accommodate the projecting peeking et the ring when the 'letter is clasped between the piates tio ferm e moisi ebembei, and also to appiju pieesure to articles; in.

metmre teeming e, meid Chamb-eig and also epf moitie5 means ier exhausting me ehem "iitnesses ARTHUR if. DERREM, Amiek? E. Hommell. 

